From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261562AbVFBWrc (ORCPT ); Thu, 2 Jun 2005 18:47:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261619AbVFBWqX (ORCPT ); Thu, 2 Jun 2005 18:46:23 -0400 Received: from tron.kn.vutbr.cz ([147.229.191.152]:6419 "EHLO tron.kn.vutbr.cz") by vger.kernel.org with ESMTP id S261564AbVFBWpZ (ORCPT ); Thu, 2 Jun 2005 18:45:25 -0400 Message-ID: <429F8C00.3070803@stud.feec.vutbr.cz> Date: Fri, 03 Jun 2005 00:45:20 +0200 From: Michal Schmidt User-Agent: Debian Thunderbird 1.0.2 (X11/20050506) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ingo Molnar CC: Parag Warudkar , linux-kernel@vger.kernel.org Subject: Re: RT patch breaks X86_64 build References: <200505302141.31731.kernel-stuff@comcast.net> <200505302201.48123.kernel-stuff@comcast.net> <429BFF51.4000401@stud.feec.vutbr.cz> <200505310753.49447.kernel-stuff@comcast.net> <429C530E.70704@stud.feec.vutbr.cz> <20050601091344.GB11703@elte.hu> <429EFB66.8030909@stud.feec.vutbr.cz> <20050602123927.GB10878@elte.hu> <429F4A19.7030508@stud.feec.vutbr.cz> <20050602183343.GB30309@elte.hu> In-Reply-To: <20050602183343.GB30309@elte.hu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Flag: NO X-Spam-Report: Spam detection software, running on the system "tron.kn.vutbr.cz", has tested this incoming email. See other headers to know if the email has beed identified as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or block similar future email. If you have any questions, see the administrator of that system for details. ____ Content analysis details: (-4.2 points, 6.0 required) ____ pts rule name description ---- ---------------------- -------------------------------------------- 0.7 FROM_ENDS_IN_NUMS From: ends in numbers -4.9 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] ____ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Ingo Molnar wrote: > hm, one difference is that i'm running a 64-bit kernel but 32-bit > userspace (FC3-ish). Yes, that's it! I've just successfully booted into 32-bit userspace (I have a separate partition with old 32-bit Debian) with x86_64 kernel and LATENCY_TRACE enabled. Everything seemed to work. Then I mounted my normal root partition under /mnt/64 and tried chroot /mnt/64 I got a SIGSEGV. Then I copied some simple binaries from /mnt/64/bin to /root/test/bin and some necessary libraries to /root/test/lib and did chroot /root/test I could run 64-bit sash, ls, cat, date, mkdir - it worked. 64-bit bash however segfaulted. Michal